How to Adjust y axis plot range in Matlab?

Question

I need to plot the following functions in matlab

y1=sign(x)
y2=tanh(x)
y3=(x)/(x+1)

The x-range is -5,5 with 0.1 spacing The y-plot range s

Answer 1

Yes, use axis after the plot command:

axis([-5 5 -1.5 1.5])